> Because building a freezer that goes to -30 C is as cheap as going to -18 C. For small sizes, yes it is. But also, capex vs opex. Even if it's twice the cos

> Because building a freezer that goes to -30 C is as cheap as going to -18 C. For small sizes, yes it is. But also, capex vs opex. Even if it's twice the cost, you only pay it once.