You're probably not going to be able to house a six-pack of Grolsch (at least, not pleasantly). If you're looking for a beer that you can crush many bottles of in a single sitting, skip Grolsch.
“As a result of this, and following much analysis, we have decided to reformulate Grolsch to a new ABV of 3.4 per cent. “We are confident this still delivers an excellent premium beer that ...