Every ventilation opening on a Texas food truck (vents, exhaust fans, and windows that open) needs screening of at least 16 mesh to the inch, and doors and windows must be tight-fitting to keep pests out. In our clients' recent inspections, inspectors treated any open gap as a failure: each one had to be screened or completely sealed.
Water lines feeding coffee and beverage equipment are also getting checked for backflow protection. Fix these before inspection day. They're cheap now and expensive later.
- 🕸️ 16 mesh on every vent, fan, and window that opens.
- 🚪 Tight-fitting doors. A bad door seal alone has failed a unit.
- 🕳️ No open gaps. Screen it or seal it. Inspectors aren't splitting the difference.
- ☕ Backflow protection on water lines to coffee and beverage equipment.
- 🔥 BBQ too. Pits must be screened or enclosed.
- Screening of at least 16 mesh to the inch on every ventilation opening: exhaust fans, vents, and windows that open.
- Tight-fitting doors and windows to keep pests out.
- Food-contact surfaces that are durable, corrosion-resistant, and non-absorbent.
- Missing 16-mesh screening is on our list of the most common reasons units fail.
What Inspectors Flagged on Our Clients' Units
1. The coffee trailer: not fully sealed, and no backflow protection
A client running a coffee setup didn't pass on the first try. Two issues: parts of the unit weren't fully sealed, and the water supply to her coffee machine setup didn't have the backflow protection the inspector wanted. That's a device that lets air in to break a siphon, so used water can't be pulled back into the clean water line. If you're plumbing in espresso, coffee, or other beverage equipment, have your builder or a plumber confirm the line is protected before inspection.
2. The unit with gaps, and a door seal that wasn't right
Another client's inspector treated every gap as an automatic fail. Each one had to be covered with screening or sealed completely; nothing in between. The inspector also flagged the seal on the door as not tight enough. Gaps hide where panels meet, around wiring and plumbing pass-throughs, around equipment, and along door and window frames.
3. The matcha trailer with open window openings
A matcha trailer came to us with window openings and nothing in them: no glass, no screens. Those openings had to get 16-mesh screening before the unit could pass. Open serving windows are the first place to check.
4. BBQ rigs: same rule, bigger openings
DSHS told us pull-behind BBQ pits are allowed under agency policy only if they're screened in or enclosed, and open-air cooking is out. Read what DSHS said about BBQ pit screening.
Your Pre-Inspection Seal Check
Do this a week before your inspection, not the morning of:
How Operators Are Fixing It
- Gaps: close them with weatherstripping, door gaskets, or a sealant suitable for food areas. If you need the opening for airflow, cover it with 16-mesh screen instead.
- Open window openings: install 16-mesh screens, framed so they sit tight with no edges lifting.
- Door seals: replace the gasket or weatherstripping so the door closes tight on every side.
- Beverage water lines: have a plumber or your builder add the right backflow protection for the equipment.
Most of these are a few hours of work and a small parts bill. Failing for them costs you a re-inspection fee and weeks of waiting: see what a failed inspection really costs.
Failed on Sealing or Screening? Tell Us What They Said.
We document what inspectors are actually flagging so the next operator doesn't get caught. If your inspector called out a gap, a seal, a screen, or a water line, call or text us. We'll keep your name out of it.
Call or text (956) 592-2896 →Frequently Asked Questions
What screening does a Texas food truck need to pass inspection?
Every ventilation opening, including exhaust fans, vents, and windows that open, needs screening of at least 16 mesh to the inch.
Do gaps in a food truck fail inspection in Texas?
In our clients' recent DSHS inspections, inspectors treated open gaps as a failure. Each gap had to be covered with 16-mesh screening or sealed completely. This is a field report, not published policy, but it has been consistent.
Does my food truck door need a seal?
Doors and windows must be tight-fitting to keep pests out, and a client's unit was flagged specifically for an improper door seal. Check the gasket all the way around before inspection.
Does a coffee trailer need backflow protection?
A client's coffee trailer was flagged because the water supply to the coffee machine setup lacked the backflow protection the inspector wanted. Have a plumber or your builder confirm any line feeding beverage equipment is protected.
Do BBQ pits need to be screened in Texas?
Yes. DSHS told us pull-behind BBQ pits are allowed under agency policy only if they are screened in or enclosed, and open-air cooking is no longer permitted for mobile food vendors.
Related Reports
- Equipment Requirements Under HB 2844
- BBQ Pits: DSHS Screening Rules
- What Happens at Your DSHS Inspection
- Questions to Ask Your Food Truck Builder
- Failed Your Inspection? What It Costs
Published: October 22, 2026. Last verified: October 22, 2026. Requirements are drawn from the DSHS Mobile Food Vendor Guide, 25 TAC Chapter 226, and the Texas Food Establishment Rules as summarized in our verified reports. Field reports describe what inspectors told our clients and are labeled as such; they are not published DSHS policy. This is general compliance information, not legal advice.
Reported by: Texas Food Truck Permits Editorial Team