The first time I baked them in the oven and they were fine after but since I haven't bothered and in rum there's no detectable trace of them. I would bake them again if using them in a neutral wash not that I've ever had to adjust a neutral wash.
equipment: 18 gal keg boiler on its side on wheel's with fill port, 1in drain and 2x2.4kw elements 4in 5 plate modular blockhead with optional infusion basket
equipment: 2" pot with 2" shotty 400mm long 5x 1/2" on a t500 boiler. 50l keg boiler 4" still mount 4" sight glass 1" drain.. 4 plate 4" bubbler, 600mm packed section