Build the right mix for garden mold cleanup. Switch units and compare common recipes fast. Download a batch sheet and work safely every time.
| Cleaner | Batch | Strength | Surface | Key Output |
|---|---|---|---|---|
| Vinegar dilution (5%) | 2 L | Standard (3.5%) | Plastic trays | 1.4 L vinegar, 0.6 L water |
| Peroxide dilution (3%) | 1 gal | Mild (0.5%) | Greenhouse glass | 0.17 gal peroxide, 0.83 gal water |
| Bleach disinfection (5.25%) | 4 L | Standard (1000 ppm) | Metal tools | 80 mL bleach, 3.92 L water |
| Baking soda wash | 3 L | Strong (60 g/L) | Terracotta pots | 180 g baking soda, 3 L water |
Examples are illustrative. Always patch test and ventilate well.
For vinegar and peroxide, the calculator uses the dilution rule: C1 × V1 = C2 × V2. Here, C1 is your stock strength, C2 is the target, and V2 is the total batch volume.
Bleach strength is converted to ppm using stock ppm ≈ (% × 10,000). The needed bleach volume is:
Different garden surfaces tolerate different chemistry. Vinegar and peroxide suit many non‑porous plastics and glass, while powders help lift grime on pots. Bleach is a disinfectant for hard, colorfast items, not a universal cleaner. Avoid bleach on aluminum, fabrics, and living soil areas. Match the option to the surface, nearby plants, and ventilation, and always patch‑test painted shelves.
Start with the smallest batch that still wets the area evenly. Oversized batches waste active ingredients and reduce freshness, especially for peroxide kept in light. Use liters or gallons for large washdowns, and cups or fluid ounces for small spray bottles. Keep one unit for measuring, then display results in your preferred unit for labeling and refills.
The calculator applies stock‑to‑target math to compute the required concentrate volume and the remaining water. For bleach, it converts label percentage to ppm, then scales to the target ppm. Custom targets are useful when labels or extension guidance specify an exact range. If a target exceeds stock strength, the tool limits it and flags a note so you can adjust. For powders, it multiplies the grams‑per‑liter rate by total liters, then converts to your mass unit. For oils, it scales drops per liter, giving a count for small bottles.
Contact time is the working window for killing spores and loosening biofilm. Heavier contamination and porous materials typically need longer soaking and repeated wetting. Scrub with a dedicated brush, then rinse to remove residues that can harm seedlings or leave slippery films. On terracotta, soak, rinse, and air‑dry; on wood, minimize saturation to prevent swelling and warping.
Save each batch sheet to standardize crew work and to compare what performs best. Record surface, contamination level, and any add‑ons such as soap. Use the CSV for logs and the PDF as a job card. Consistent mixing improves safety, reduces over‑concentration, and makes costs predictable across seasons. Review results monthly and retire mixes that cause odor, fading, or corrosion.
No. Combining acids with bleach can release harmful chlorine gas. Use one cleaner at a time, rinse, and dry. If you switch products, flush the surface with water before applying the next.
Measure the bottle capacity, then mix only what you can use that day. For frequent touch‑ups, smaller batches stay fresher and reduce waste, especially for peroxide-based sprays.
Disinfection guidance is often written in ppm available chlorine. The calculator converts the label percent to ppm and scales the bleach volume so you reach the target ppm in your final batch.
Usually yes. Rinsing removes residues that can irritate skin, damage seedlings, or leave slippery films. For pots and tools, rinse thoroughly and air‑dry before reuse.
Avoid soaking. Apply lightly, keep contact time controlled, scrub, then rinse sparingly. Let the material dry completely. Consider improving airflow and reducing splash zones to prevent recurring mold.
No. Oils mainly add scent and may offer minor support, but they can irritate sensitive plants and insects. Use them only if tolerated, and keep doses low on greenhouse and propagation surfaces.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.