Project ideas from Hacker News discussions.

Making chicken transparent using Dorito dust

📝 Discussion Summary (Click to expand)

Three prevalent themes in the discussion

  1. How the transparency works (science & safety)
  2. The effect comes from matching the refractive index of water‑based tissue with a high concentration of tartrazine (the yellow dye used in Doritos), not from “crushed Doritos.”
  3. gus_massa: “They use tartrazine that is a common dye for food, not crushed Doritos. They need a lot of dye to change the internal refraction index and make the meat transparent.”
  4. Safety notes: EFSA finds no toxicity up to 2 g/kg, but the required ~5 % solution is far above typical food levels.

  5. Humorous, speculative reactions

  6. Commenters joke about Dorito‑powered invisibility, transparent body parts, and pop‑culture references.
  7. mbStavola: “This is why we must fund the sciences. How else would we get transparent Dorito tendies?”
  8. waltbosz: “I’m trying to imagine the origin story… somebody wanted to make Doritos‑flavored chicken and accidentally discovered that the marinade turned the chicken breast transparent.”
  9. dghughes: “What does it do to people? Do I get a transparent anus if I eat a family size bag of Doritos?”

  10. Broader implications (medical potential, food‑culture critique, regulation)

  11. Some see promise for imaging/live‑tissue diagnostics, while others lament the increasingly chemical nature of snack foods and discuss naturalism vs. processing.
  12. JSR_FDED: “But what it reveals about our relationship with food is a little unsettling. The intensely chemical nature of Doritos and the whole notion of turning flesh into something alien …”
  13. dotancohen: Suggests the technique could help diagnose medical conditions.
  14. layer8: Points out EU labeling requirements for tartrazine (“may have an adverse effect on activity and attention in children”).

🚀 Project Ideas

ClearSlice: Kitchen Immersion Device for Temporary Meat Transparency

Summary

  • ClearSlice is a countertop immersion circulator that briefly soaks thin meat slices in a food‑safe tartrazine solution to render them temporarily transparent, letting home cooks see internal marbling, doneness, and fat distribution without cutting.
  • Core value proposition: Enables visual doneness assessment and improves cooking precision while using only FDA‑approved, edible ingredients.

Details

Key Value
Target Audience Home cooking enthusiasts, sous vide chefs, food science hobbyists
Core Feature Precise temperature‑controlled bath with edible dye solution, automatic timing, and built‑in thin slicer guide
Tech Stack Stainless steel heater, PID controller, food‑grade pump, silicone container, Arduino/ESP32, mobile app for control
Difficulty Medium
Monetization Revenue-ready: $129 device + $9 refill dye packs (subscription)

Notes

  • HN commenters expressed interest in seeing inside meat for cooking (“ricardobeat: How about a sous vide bath? Could go as long as 72 hours before it turns into complete mush.”) and noted the difficulty of cutting thin slices (“masfuerte: Author notes the difficulty of cutting thin slices of raw chicken…”).
  • Practical utility: Reduces guesswork in cooking, aids food education, and could be adapted for commercial kitchens for quality control.

VeinClear: Temporary Skin Clearing Gel for Medical Procedures

Summary

  • VeinClear is a topical, sterile gel containing a low‑concentration, FDA‑approved tartrazine‑based clearing agent that renders skin semi‑transparent for a few minutes, facilitating vein location for IVs, blood draws, and subcutaneous injections.
  • Core value proposition: Improves first‑stick success rates, reduces patient discomfort, and works without specialized equipment.

Details

Key Value
Target Audience Phlebotomists, nurses, EMTs, pediatric clinics
Core Feature Single‑use applicator with gel that becomes active on skin contact, timed clearing effect (~2‑5 min), includes neutralizer wipe to restore opacity
- Tech Stack Hydrogel base, tartrazine, viscosity modifiers, sterile packaging, optional NFC tag for usage tracking
Difficulty Medium
Monetization Revenue-ready: $1.50 per applicator, bulk packs for hospitals

Notes

  • HN users voiced the desire to see veins under skin (“deadbabe: I had this dream once where we invented a type of tattoo that would make your skin transparent so you could see muscle and veins underneath…”) and the frustration with uncleanable tools (“serf: seeing the essentially un‑cleanable calipers touching raw chicken irks me to hell…”, analogous to needing a non‑invasive visual aid).
  • Potential for discussion: Could spark conversation about non‑invasive diagnostics, reduce reliance on ultrasound, and be valuable in low‑resource settings.

ClearLab: Educational Tissue Clearing Kit for STEM Labs

Summary

  • ClearLab provides a safe, classroom‑friendly kit that lets students render biological samples (e.g., chicken breast, plant leaves) transparent using tartrazine solutions, with guided experiments on refractive index matching and light scattering.
  • Core value proposition: Turns a fun food‑science trick into a hands‑on learning module for optics, biology, and chemistry, meeting NGSS standards.

Details

Key Value
Target Audience High school and undergraduate STEM educators, makerspaces, science museums
Core Feature Pre‑measured dye packets, protocol booklet, safety goggles, sample holder, and smartphone‑based light‑transmission meter
Tech Stack Food‑grade tartrazine, distilled water, plastic cuvettes, Arduino‑based light sensor, online lesson portal
Difficulty Low
Monetization Revenue-ready: $29 per kit

Notes

  • HN commenters highlighted the educational and experimental appeal (“layer8: Fun fact: Doritos don’t contain tartrazine in Europe…”, “gus_massa: They use tartrazine that is a common dye for food…”, and “dotancohen: I wonder if this could be applied to living tissue…. could help in diagnosing some medical conditions.”).
  • Practical utility: Encourages safe experimentation, demystifies food additives, and could lead to citizen‑science projects measuring clearing efficiency.

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