Issue link: http://winesandvines.uberflip.com/i/101495
WineEast wet and disintegrate into pieces. There was no reasonable way to attach the batting that would secure it to the tank and cover all the places heat could leak inside. The solution had to be a moisture-proof material that could be attached to the tank and at the same time be durable enough to withstand the rigors of the cellar. When you look at the thermal conductivity rate of possible materials, stainless steel is rated at 13.76 kcal/(hr��m��oC); polyethylene is 0.4 kcal/(hr��m��oC); fiberglass is 0.04 kcal/(hr��m��oC), and polyurethane foam is 0.03 kcal/(hr��m��oC.) We found a polyurethane foam applicator in our area and then had the Flextank sprayed with 2-3 inches of the foam (see photo on page 152.) Before the foam was applied, we blocked out the valve and manway areas of the tank. After the application, I painted the foam with a rubberized paint in an attempt to make the surface more durable. Time to Cold Stabilization in Plastic Tanks 10 Insulated 8 S a le s Not insulated Company ��� Mist Sprayers ��� 6 4 2 0 -2 T+ 9.25 T+ 8.50 Low Maintenance High Performance T+ 10.00 Time From Start in Hours T+ 7.75 T+ 7.00 T+ 6.25 T+ 5.50 T+ 4.75 T+ 4.00 T+ 3.25 T+ 2.50 T+ 1.75 We offer a complete line of low volume mist blowers. T+ 0.25 -4 Motor Models available American Made T+ 1.00 Temperature in Degrees Celsius 12 Immediate results The results for the initial batch of wine in the foam-covered tank were immediately apparent, as the temperature drop was significant. The temperature dropped at the rate of at least 1oC per hour, and most of the time it was faster. The graph below shows the rate of temperature reduction for both the insulated and un-insulated Flextanks. The temperature drop to about 0oC took about the same time for the un-insulated tanks as the insulated tank, but that final drop to -3oC was just not possible in the un-insulated tank because of the heat loss to the environment. This experiment demonstrates that the time a wine takes to reach cold stability is similar to the time a wine is exposed to ambient air during filtration. Cold stabilization in a Flextank does not seem to pose any more problems than filtration. We have been using this Flextank cold-stabilization system for the past six months, and the results have been as good as or better than we anticipated. I no longer have to worry about whether or not a given lot of wine will achieve cold stability���and I solved the problem at a relatively small cost. The 1,135-liter Flextank costs about $1,000, the cooling coil about $1,200, and the polyurethane covering was about $250. WE Excellent for spraying: VINEYARDS, vegetables, orchards, nurseries, Christmas trees, mosquitoes, cattle, chicken houses, etc. For free brochure contact: References available in your area 785-754-3513 or 800-864-4595 www.swihart-sales.com Swihart Sales Co. 7240 County Road AA, Quinter, KS 67752 GREEN GRAPE HOE Hillup Your Vines For Winter. Basic Hoe comes with a Hillup and a Takeaway Blade. Additional attachments include .3 Tooth Cultivator, Undercutter Blade, Rotary head, " NEW " Rolling Cultivator and "Vine Auger". The Green Hoe Company, Inc. 6645 West Main Road, Portland, NY 14769 PHONE (716) 792-9433 FAX (716) 792-9434 WWW.GREENHOECOMPANY.COM Win es & Vin es JA N UA RY 20 13 153