Freezer Performance: Seals, Sensors and Alarms

Freezers quietly chug along in a basement or utility area and are easy take for granted – until they unexpectedly fail. This post is about getting a “heads-up” before a major loss.

Most freezes are NOT equipped with an actual internal temperature readout device or alarm. If yours has none then by all means at least get one like this that has a wired sensor run thru the door seal and an external battery powered readout and audio alarm. You can use it both to adjust the freezer temp setting to the zero to 10 below F range best for beef storage and get an alarm should the freezer or circuit fail.

Freezer “door seals” are a major performance concern. The are by no means a perfect “hermetic” seal and only slow down the leakage of internal cold/heavy/dry air OUT to be replaced by warm/light/wet room air leaking IN. This is why frost forms on the internal walls and coils. Frost represents the condensation and freezing of room air humidity on these cold surfaces. The more leakage the quicker it forms. Make sure your door seals are undamaged without excess crud in the pleats (particularly along the bottom seal of an upright style freezer) and are not age-hardened.

Chest freezers are less vulnerable to air leakage because the seal is all at a single elevation with a uniform internal air pressure behind it. Their seal pleats are oriented horizontally and don’t collect crud. Upright freezer seals are faced with a pressure differential between top and bottom due to the tall column of warmer-top and colder-bottom air they are holding in. The bottom seal tends to collect crud from inside the freezer box. Uprights are prone to leak OUT at bottom and pull IN at top.

Box Intro Price Special $6.95

sirloin works well too
Grilled Steak Salad w/Chile/Brown Sugar Rub: NYT Cooking. I used sirloin instead.

Box size (nominally 33 pounds) grass-fed beef packages specially priced at $6.95 per pound with discounted home delivery for a limited time. That’s  over 50 cents per pound off normal pricing! First-time customers only. See “Beef Packages & Pricing” for” Box” cut makeup. Limit one (1)  box per order/delivery address. Only PayPal (not mailed check) deposits received while this post is active will be eligible. Special flat total delivery charge of $7.00 per order/address. See “How to Order” on menu.  For Mpls/St Paul area home delivery on Sept 15 and Fargo area home delivery on Oct. 13.


 

Availability and Delivery

Quarters , halves and  boxes newly available for  fall 2018 farm pick-up or Minneapolis/St Paul or Fargo metro delivery. Check the freezer and see if you need to replenish. Outdoor grilling season still in force and indoor oven roasting and braising becoming compelling again.

Next Fargo delivery  Oct 13

Next Mpls/St Paul delivery Sept 15