Bulk Buys:
Even at 0% discount, it works as a pre-order to guarantee an item for people. Also and I am not sure if this is applicable for your items, the kind of things gameco does it on are blacksmith items and steel, if an increased quantity drops your price from the manufacturer, sayy ou double your order. I recall them having instances where X orders would be at one price and it drops if orders increase, in tiers, as their landed cost drops. This could work with the fridges/keggerators, for example, you pre-sell them and determine demand, at worst case will reduce the number of people that miss out if demand is really high. Certainly, a social aspect is great too, and can help for items you are unsure of selling. Grain/hops may be another ideal product, you want a pallet of pale malt, you pre-sell a pallet or two extra of pale malt, that extra amount comes in and goes out, no storage, no real handling. Gameco do it via a fb group and just post there to advise of items.
RAPT:
I have done some fridge cured meats, but always cooked them as I have a concern about hanging meat in the irrational Melbourne weather, Bacon is always fun. Have you seen the billtong boxes on yt? filament light bulb and a fan, it dries biltong in about a week., it is similar to the little commercial boxes.
