Marinating with a Weston Vacuum Sealer

!±8± Marinating with a Weston Vacuum Sealer

In this installment of Love of the Hunt, Brad Lockwood uses a Weston Vacuum Sealer to marinate his game before making jerky with it.

Marinating with a Weston Vacuum Sealer

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!±8± FoodSaver FSFSSL0320-000 Heavy-Duty Vacuum Sealer, Black

Brand : FoodSaver | Rate : | Price : $149.99
Post Date : Dec 26, 2011 04:36:08 | Usually ships in 24 hours

FoodSaver FSFSSL0320-000 Heavy-Duty Vacuum Sealer, Black

• Vacuum sealing system designed with the sportsman in mind
• Rugged design, increased vacuuming and intelligent repetitive sealing to handle multiple jobs
• Extra deep, removable, dishwasher-safe drip tray
• Bag material, accessory hose and instructions included

More Specification..!!

FoodSaver FSFSSL0320-000 Heavy-Duty Vacuum Sealer, Black

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Marine Refrigeration

!±8± Marine Refrigeration

How does Marine refrigeration work? The major parts of a DC refrigeration system include the refrigerant, a compressor, and a condenser, a cooling system for condenser, and a plate or plates inside the refrigeration box. 

The compressor is part of a closed loop pumping refrigerant through the system and through the evaporator plate in the ice box. The compressor has two sides the High side or discharge side. The discharge side pumps refrigerant under pressure to the condenser. The suction side or low side and sucks refrigerant after it passes thru the evaporator plate back to the compressor. The cold plates in the fridge space have either expansion valves or capillary tube that separate the low and high pressure sides of the refrigeration system.

The refrigerant in the compressor starts as a gas. The compressor compresses the refrigerant gas, from low pressure to high pressure between 100-150 psi. When the pressure is increased like this its temperature is raised dramatically. This hot high pressure refrigerant is then fed to a condenser, where it is cooled and turned into a liquid. The condenser is cooled by either air or water. The refrigerant is now a cool high pressure liquid and is fed to an evaporator plate inside the boats refrigerator box.

The evaporator plate takes the refrigerant from the condenser and here it boils rapidly & evaporates back to a gas, at a very low temperature. This change of state absorbs vast amounts of sensible heat from the evaporator which in turn removes heat from the insulated refrigeration box, thereby lowering its temperature. The BTU is the measurement of heat removed. From the evaporator plate the refrigerant is returned to the low side of the compressor, to start the process again.

Evaporator or Holding Plates

Marine refrigeration systems use either an evaporator plate or a holding plate in the boats refrigeration space or freezer space. Each type of plate works differently in drawing heat from the boats refrigerator and ice box space.

Marine Evaporator

Marine Evaporators are just like the ones found in household refrigerators. They can get quite cold (thermostat setting) and many evaporators have the ability to make ice next to the evaporator plate or inside the evaporator box. Evaporators come in several shapes and sizes; they can be horizontal plate's vertical plates and rolled plates. Evaporators are constant cycling, or short cycle. Most use a Danfoss marine compressor with H134 refrigerant.

Thermostat controlled evaporator temperature. Turn to lower ice box temperature. Evaporator plates are less expensive, but need Constant power supply.

Marine Holding plates

Marine Refrigerator Holding Plates act like large blocks of ice and the cold temperature of the holding plate sucks heat out of the boats refrigeration box. Holding plates can keep ice boxes cold for long periods.

The main advantage of a holding plate over an evaporator is that they only need to be recharged 1 or 2 times per day. This charging can coincide with attaching to shore power, running the engine and so the refrigerator does not rely on the battery bank. When incorporated into a properly designed system, holdover plates can significantly reduce average energy consumption. However DC holding plates are also possible.  The holding plate is filled with a solution that has a freezing point below 23 degrees F.  As the compressor runs, the refrigerant passes through the holding Plates coil, freezing the holding plate solution. The compressor turns of and as the holding plate thaws out, heat is removed from the box.

Powering the Compressor

The power supply to the compressor is one of the key elements of the boats refrigeration system. Refrigeration is one of the largest energy consumers onboard, so the power supply is an important element of the system. Power supplies to marine refrigeration systems include AC, DC, Shore Power, Engine power, and hybrid systems. Hybrids are combinations of say 12 volt and engine drive, or engine and shore power. The whole point in looking at power supply to your boats refrigerator is to couple it into onboard power requirements for all your boats marine systems. If you run a generator much of the time then adding on an AC refrigeration unit may make sense, but unless you do, you would be better at looking at 12 V, engine or shore power.

Power can be decided on how you use your boat. Are you tied up at a dock for much of the time and take days trips. Or do you cruise and spend large amounts of time at anchor. Finally are you Powerboating or Sailing will also influence power supply. Sailing means no charging of batteries or power from the engine. Here a solar panel or wind or towed generator can help replenish batteries. If you spend time at the dock, a DC system has plenty of time to recharge on shore power. If you spend time motoring and at the dock and engine drive with shore assist works well.

AC 110 volt marine refrigeration     

These drop in refrigerators are like the one in your home and are commonly seen on larges boats with an abundance of AC power and space. The AC powers the marine compressor, and the condenser is typically air cooled. A reliable AC supply is needed in the form of a generator.

DC marine refrigeration with Evaporator plate

 One of the cheapest marine refrigeration system and easiest to install is the 12 v or DC system. Air cooling is the simplest. The DC system combined with an evaporator plate that is thermostatically controlled gives flexibility over cooling requirements. Many 12 volt systems use the Danfoss compressor. With the increased efficiency of the Danfoss compressor, DC refrigeration onboard is getting more efficient, but is still power hungry.

For most boats with a small box, a single 12V compressor, air cooled condenser, with evaporator type plate will be about the cheapest option. The Adler Barbour Cold Machine has been around for around 25 years and provides great refrigeration for small to medium size ice boxes. 

Shore powered marine refrigeration

Shore powered systems are made to maintain the boat's ice box at set temperature when the boat is at the dock. They offer less power than direct from an engine drive but since you will be at the dock for a while that is not an issue.

If you use a holding plate and shore powered system you can keep the plate cool while away from the dock for 12 hours or so.

 Engine powered marine refrigeration

The idea behind an engine driven compressor system is that the engine gets used anyway for at lest an hour or so. If you are Powerboating this makes sense, if you are sailing calculate how much time you use the engine.

If this is the case an engine drive with a holding plate can draw down the ice box in a short period and after that it can be left for 12 plus hours.

The compressor is run directly off the engine. Belt driven or direct compressor, There are two plates and you can add more, plus ad a separate freezer unit. This creates much power and fast cooling of the holding plate. More power than a 110 volt system. Larger systems and multiple plates are possible. Engine driven systems cost more and also involve a labor higher cost    

Condenser Cooling

The marine refrigeration systems condenser needs cooling. This is how the refrigerant gets cooled and turned into a liquid. There are 3 ways to cool the condenser;

Air Cooled

Air cooling simplifies installation plus it does not rely on water or adding thru hulls. It is therefore the cheapest installation. For smaller units air cooling is OK, say 4 cu ft or under 6 cu ft you will get adequate performance. The air cooling unit needs a sufficient supply of re-circulated air for it to work. Ducting and space around the unit will help this.

When you cool by air flow you remove heat from the condenser and ad it to the ambient temperature. The temperature inside of the cabin only has enough capacity to disperse this heat.

Water cooled Condenser

Water cooled compressors will work better in higher ambient temperatures and are more efficient and can be 30% more efficient. Water cooling may be best and is better for larger installs especially if freezer is concerned. Water cooling needs a thru hull and a pump to get the water to the condenser. The most efficient way to cool the condenser

Keel cooler Condenser

The keel cooler or keel condenser requires no thru hull fitting and will not be subject to clogging. The keel cooler is a 3" x 7" bronze plate that mounts on the outside of the hull and it is the condenser heat exchanger. The bronze plates are connected direct to the compressor which is the only moving part in the system. The Keel Cooler is for a box up to a 15 cu ft refrigerator or 5 cu ft freezer. Since all the heat is passed into the water outside the boat it will does not heat up the interior. Since it works without a water pump there is never a pump or strainer to maintain and best of all it is nearly silent in operation.

Refrigeration Compressor & plate Combination

Before we pick a size of marine refrigerator we need to understand what factors are involved in keeping the refrigeration box cool. They are mainly box size, insulation and cooling water temperature, number of people aboard and the temperature you are setting the plates for.

Refrigerator Box Volume

This is obvious, the larger the box the more heat removal is necessary. A larger box will need more BTUs of heat removal. After this basic size issue we have things like, Front opening or top opening. Front opening lets cold air out quickly but does allow you to get to the bottom of the box. Drains, if you had a drain for you ice box plug it. You will not need to drain water out of the ice box and this will only let cold air out and heat in. Gaskets, these are a must and must be properly sealed. A trick to identify if there are gaps in the gasket is to put a piece of paper in between the lid or door and the cabinet and close it. Pull on the paper and you should feel some drag if the gaskets are sealing properly. It comes out easily there is a gap. Get new or better gasket material.

Insulation  

Typical insulation to a fridge or freezer is foam insulation like Dow Blue board. The recommendation is for 3-4 inches for refrigeration and 4-6 inches for freezer for medium sized boxes. Foam has an R value of 5 per inch thickness, R being a thermal unit. This means in terms of thermal units 3-4 inches represents 15-20R value for the refrigeration unit, and 20-30 for the freezer.

There are manufacturers of vacuum panel thermal insulation. The Glacier bay Barrier Ultra-R super-insulation at R-50 per inch provides lots of insulation without taking up valuable volume. These panels are vacuum panels and are sealed to work. It is very important that you do not drill through or puncture these panels. These panels are custom made, so you would need to provide the manufacturer, exact sizes with locations for copper plate tubes to enter the box. These are built into the panels.

Water temperature

In the tropics water temperature is a lot warmer then northern climates. For every degree water temperature increases a corresponding 2 % increase in required BTU. If you are in the Atlantic portions of the east coast US, you have some cool sea water temps, but of you then cruise down to the Caribbean you may strain your refrigeration system.

Plate Thermostat

The evaporator plate temperature is set by the thermostat. Dial the box temperature down and the system will have to work harder.

Number of people aboard

More people means the box gets opened more and the heat build up from more people adds to the ambient temperature.

How big a Refrigeration System is required?

To calculate how big a refrigeration or marine freezing unit required, you will need to start with an estimation of the BTU requirements of the box. A simple rule of thumb for estimating the BTUs is based on the box volume.

These BTU estimations are based on these assumptions;

- Insulation has an R value of 30 no leaks.
- Water temperatures are tropical in the mid 80s F.
- 2 people aboard, for each extra person add an additional 1,000 daily BTU
- Top opening box, for a front opening door add 15 BTU/inch of door

BTU estimate on refrigeration volume;

Refrigerator daily heat load; 600 Btu per cu. ft.

Freezer daily heat load; 1200 Btu per cu. ft

Lets look at how this works for the 4 cu ft refrigeration system, using the above formula

4 cu. ft. times 600  =   2,400 Btu.

Two additional people on board =   2,000 Btu.

Total required per day   = 4,400 Btu

Choosing 12 volt unit with Evaporator

Match this number to the compressor capabilities, and then calculate amps needed to power the system, and then work on the battery bank capability. Start by using the 4,400 BTU form the above example. The Adler Barbour Cold Machine uses the Danfoss BD50 Compressor is rated at 650BTU / hr based on 25F evaporator temp.

This is well above the 4,400/day we need for the 4 cu ft fridge, using only about 1/3 of the power. We could easily go down the Danfoss DB35.

Amps

To calculate how many amps the system will draw we start by converting BTUs to amps with this formula, using an assumption of 5 BTUs per watt hr of energy used. BTU/5/volts. so say we have 4400 BTUS and 12 volts, 4,400/5/12=74 amp hours/day.

Battery Bank

The Amps needed to power the compressor should be 1/4 of the capacity of the house bank. So for the above 74 amp hours needed multiply by 4 to get recommended house battery capacity = 296 amp hrs

Conclusion

These days being on the water means keeping food and drinks cold. 12 volt refrigeration units are becoming more popular with technological advances. Greater compressor efficiency and evaporator technology brings 12 volt cooling to the smallest of boats.

Marine Refrigeration

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FoodSaver V3020 Vertical Vacuum Sealing System With Starter Kit

!±8±FoodSaver V3020 Vertical Vacuum Sealing System With Starter Kit

Brand : FoodSaver
Rate :
Price : $79.99
Post Date : Dec 16, 2011 00:20:17
Usually ships in 24 hours

The FoodSaver V3020 Vacuum Sealing System keeps food fresh up to 5x longer based on buying on bulk, on sale and preventing waste. The convenient vertical design saves countertop space, the large, easy-to-read control buttons makes for easy operation, and the two sealing levels are great for different types of foods. The starter kit includes one 11-inch by 10-foot FoodSaver roll, one 8-inch by 20-foot FoodSaver roll, eight 1-quart Heat-Seal bags, and two 1-gallon Heat-Seal bags.

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The Benefits Of Vacuum Sealing

!±8± The Benefits Of Vacuum Sealing

In the current economy, most people are looking for ways to reduce their monthly expenses. A good way to reduce your expenses is to use vacuum sealers to store food. There are numerous ways to store food and leftovers such as using jars, plastic and tin containers. But, these might not necessarily be as effective as a sealer which can store perishable items for an extended time period.

The secret with such products is that they can remove all the air and this will enable the items to be conserved much longer. This can also help to retain flavor and moisture whilst the food is in storage. If you are storing in freezer, the vacuuming process prevents freezer burn.

You can also find several sealers which provide a crush-free feature. They are ideal for storing breads, cakes and any other delicate food items which could crumble with regular packing. By using these products you can stop mold growth which will make the food items easier to reheat and then eat later. Traveling with food items from one location to another will be a breeze if you are using vacuum sealers, especially if you are carrying desserts that could break easily.

Vacuum sealing can be beneficial in numerous ways, but perhaps the most important one is that you will get to reduce your grocery expenses. Even if you are storing the food for five days, your meals can still taste fresh as if it was being cooked for the first time. If you have a hectic lifestyle, sealers will enable you to save valuable time as you can use leftovers instead of cooking every day. This definitely will provide you with food items to prepare for quick lunches and remove the need to eat out most of time and also eliminate unhealthy food from your diet.

Considering the number of benefits, you can understand why most people are now using vacuum sealers when they have to store food items.

The Benefits Of Vacuum Sealing

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3 Explanations Why You Need to Vacuum Seal Food

!±8± 3 Explanations Why You Need to Vacuum Seal Food

In the past, vacuum sealing of food was commercial and only industries used large sealing machines to suck out air from pockets and containers to preserve dry and moist items. However, now many homes need such sealing machines to preserve item cooked at home. Also, the machines that suck out air and preserve items in the best possible way is affordable for everyone now. Such machines can be easily placed on kitchen countertops and used as and when necessary. Accessories for sealing and packing machines are also available widely and they are inexpensive.

Every home needs to vacuum seal food at least for the following three main reasons:

To Improve Shelf Life Of Cooked Meals

Ordinary storing of cooked items involves simply using air tight containers. However, these containers still contain air that is good for microorganisms to breed and spoil the items contained within the container. Using vacuum sealing technique, all the air is sucked out of the container which leaves no trace for microorganisms to live and hence, shelf life of cooked items is greatly improved.

To Preserve Nutrients And Flavor Of Cooked Items

By storing cooked items in ordinary containers and plastic bags, you will find that the flavor of the items is decreased when you reheat the items from refrigerator. Also, nutrients in the items will be destroyed due to traditional storing method. With vacuum seal food, all flavor and nutrients will be locked in the food because there is no air for contaminating items.

To Save Time

When cooked items can be stored easily in refrigerator for several weeks together, there is no need to spend a lot of time in the kitchen during week days. You can cook during weekends and seal all the cooked items with a vacuum food sealer such as Keeper food sealers to store in refrigerator. So, when you are hurrying to your office, all you need to do is reheat the items and you are good to go.

3 Explanations Why You Need to Vacuum Seal Food

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The Importance of Proper Food Storage

!±8± The Importance of Proper Food Storage

Appropriately stored food is important and though, it is an easy task if the amount of food is less, but how exactly do you store food in larger quantities? Understanding proper storage techniques will not only aid in retaining freshness, but can also eliminate wastefulness, reduce the risk of contamination and unnecessary spending.

Before you can think about how to properly store your food, it is vital to ascertain that is in good condition. This is especially true, if you intend on storing foods for a long period of time. Packaging can be a great help in maintaining quality and freshness. Purchase canned or vacuum sealed goods when you can. For meats such as beef, chicken, seafood, turkey, poultry and game, use or freeze it before the specified date on the packaging.

If space is a problem, don't purchase more than you can store. Make a list before heading to the store to avoid impulse buys or redundant food. Label and seal your loose food items - such as rice, cereals and pastas - in bags and air-tight containers. Store your canned goods in boxes or bins and keep them in an area that is cool and free of moisture. You can be ready to cook up some healthy, tasty meals just by following these basic steps.

Correct food storage is important to avoid spoiling. It will not only save you money, but it can keep food from becoming contaminated and thus making you or your loved ones seriously ill. Different foods have different storage requirements, always check the packaging for dates and storage instructions and be aware of the variety of food storage options available at your local market.

Perhaps the most common choice for food storage is plastic storage bags. Often freezer-proof, they can be simple sandwich bags without a seal or they could have a zipper- or press-seal to keep the air out. There are also specially designed bags for fruit and vegetable storage which allow some air into the bag. Fruits and vegetables can last for up to six weeks in such bags.

Another popular option is plastic storage containers. There are some that are designed to withstand extremes of heat and cold, and you should choose carefully according to your needs. There are various shapes and sizes, some with compartments which can be particularly helpful when preparing foods in advance for later consumption. They are made for both domestic and commercial use and typically made to be microwave and dishwasher safe. Some containers are made to be disposable after a few uses, this is important to note because some plastics can release chemicals into foods after a while. Again, read your labels carefully.

The arch enemy of healthy, fresh food is air. Air can quickly deteriorate your food, but there are options to combat this particular villain. Vacuum sealers remove air and leave an airtight seal. Your choices for food storage are numerous, however if you make informed choices about storing your goods, you'll waste less food, spend less money and be a lot happier in the end.

The Importance of Proper Food Storage

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