Did any try to heat small amounts of potting mixture to heat in the microwave ?? are there some other ways to sterilise potting mixture in smaller quantities for example 50 litre Roland 2013/4/3 <Jadeboy48@aol.com>: Yes, sterilising soil with steam is an excellent idea. R de Boer La Maugardiere 1 F 27260 EPAIGNES FRANCE Phone./Fax 0033-232-576-204 Email: bulborum@gmail.com Facebook: https://facebook.com/pages/Bulborum/…