Oven doors blowing out

Lot of problems with the Belling brand, and in US with Electrolux. Loffra can be an issue (rare) as the door glass is removeable for cleaning. If it is scratched in that process or put through a dishwasher or not seated properly when re-installing the glass can indeed shatter as it expands and contracts during heating and cooling. Loffra is a very respected brand and is used in cooking schools throughout Europe. With proper care and carefully following cleaning directions you shouldn't have any problems.