Bleach against bugs at the campsite: the circle that doesn't protect

Bleach doesn't repel bugs: how to sleep outdoors without nasty surprises

Bleach does not protect a tent from bugs. It neither repels them nor stops them: it just gives them a moment of strong smell before they carry on with their lives. The question is reasonable, but the answer is uncomfortable: a campsite has no magical chemical barriers.

Reactions to the idea of a bleach perimeter range from a crocodile-filled moat to a six-meter wall with archers. It doesn't take that much engineering to understand the issue. Insects, scorpions and centipedes don't respect any circle of cleaning product; what they respect is the absence of access.

In a tent, the practical approach is to zip it up properly and check the inside before going to bed. The serious problem appears in the bivouac, with no tent, sleeping bag under the open sky: body heat attracts any creature looking for shelter, and bleach on the ground is just a smelly stain. The alternative that sidesteps the problem is a hammock between trees, with the trunk coated to prevent climbing. It's uncomfortable, but it turns the sleeper into an unreachable target.

No one should expect a cleaning product to turn camping into a sterile room. Nature gives in to physical barriers and common sense, not to smells. We will keep seeing testers of the bleach circle, and most will go back to sleeping with one eye open. If the trend continues, repellent manufacturers will have to offer something more than an aggressive fragrance.