Citrus Peel Fire Starter for Fast, Odor-Free Charcoal Ignition

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Solution Overview

Problem

Existing fire starters, such as charcoal lighter liquids and grates, are either toxic, slow, or inefficient in lighting charcoal or wood, and leave unpleasant odors or tastes, posing health and environmental risks.

Innovation Solution

A fire starter composed of dried citrus peels with an organic wick, dipped in natural resin or essential oil, and optionally wrapped in paper, which provides fast and efficient ignition without harmful emissions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If charcoal lighter liquids (kerosene, alcohols) are used to accelerate lighting of charcoal, then the lighting speed is improved, but the solvents are toxic by inhalation and leave unpleasant odor

Engineering Contradiction:
Improvelighting speedVSAvoidtoxicity and unpleasant odor
Core Design Contradiction:
SpeedVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters of the fire starter from petroleum-based solvents to natural plant-based materials (citrus peels, essential oils, natural resins). This parameter change maintains the flammability and lighting speed while eliminating the toxicity and unpleasant odor associated with kerosene and alcohol-based lighter liquids.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent converts potentially harmful petroleum-based chemicals into beneficial natural plant materials. By using citrus peels, essential oils, and natural resins, the invention transforms the source of potential harm (toxic solvents) into a beneficial element (natural, non-toxic, aromatic materials that provide both ignition and pleasant scent).

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Quantity of substance

If sawdust is used as fuel with inverted cavity grates, then air distribution is improved, but breathing dust is unhealthy

Engineering Contradiction:
Improveair distribution volumeVSAvoidhealth hazard from dust
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the reusable but harmful sawdust system with a disposable natural fire starter made from citrus peels and plant materials. This fire starter serves its purpose quickly (short-living) during the ignition phase and then disappears through combustion, eliminating the ongoing health hazard of dust inhalation associated with reusable sawdust grates.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent converts the harmful fine particulate sawdust into beneficial natural plant materials (citrus peels, essential oils, natural resins) that are less harmful when inhaled. The natural organic materials provide the necessary air distribution and combustion properties while being safer for human health.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Stability of the object's composition

If charcoal briquettes are used for combustion, then steady state combustion is achieved, but the heating rate is slow

Engineering Contradiction:
Improvecombustion stabilityVSAvoidheating rate
Core Design Contradiction:
Stability of the object's compositionVSSpeed

Solution Approach 1:

The patent applies preliminary action by using the natural fire starter (citrus peels dipped in essential oils and natural resins) to pre-ignite the charcoal before the main combustion process begins. The fire starter contains concentrated flammable materials that ignite quickly and provide immediate high heat, jump-starting the combustion process before the slower-burning charcoal briquettes take over for steady-state combustion.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The natural fire starter acts as an intermediary substance between the ignition source and the charcoal briquettes. It mediates the transition from slow ignition to rapid combustion by providing a intermediate fuel source that burns hotter and faster than charcoal alone, thereby accelerating the heating rate while the charcoal maintains combustion stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Speed

If Venturi effect is used in chimney style charcoal starters, then initial kindling combustion is accelerated, but the effect disappears during the longer charcoal heating phase

Engineering Contradiction:
Improveinitial kindling speedVSAvoidheating phase duration
Core Design Contradiction:
SpeedVSDuration of action of stationary object

Solution Approach 1:

The patent uses preliminary action by incorporating essential oils and natural resins into the citrus peel fire starter that provide sustained combustion properties throughout the entire heating phase, not just the initial kindling. These natural materials continue to burn and release energy during the longer charcoal heating phase, maintaining their effectiveness unlike the Venturi effect which only works during initial kindling.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The natural fire starter provides continuous useful action throughout the entire combustion process. The citrus peels impregnated with essential oils and natural resins continue to burn steadily during the prolonged charcoal heating phase, maintaining combustion without the need for additional air flow mechanisms like the Venturi effect, thereby achieving continuous effective combustion throughout.

Inventive Principle:
Principle #20Continuity of useful action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The citrus peel-based fire starter ignites charcoal or wood swiftly, enhances flavor, and reduces environmental impact by using natural, non-toxic materials, eliminating unpleasant odors and toxic emissions.

Implementation Method 1

an organic wick is connected, dipped in a natural resin or in essential oil

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

The citrus peel-based fire starter ignites charcoal or wood swiftly

Methodology Applied
Scientific EffectCombustion: Combustion

Data Source

PatentUS20250257276A1Improved fire starter and preparation methods therefor
Publication Date: 2025.08.14 KEHATI MICHAL
  • US20250257276A1 patent drawing
  • US20250257276A1 patent drawing
  • US20250257276A1 patent drawing

AI summary

The present invention provides an improved fire starter that includes inter alia citrus peels processed in a unique form to enable fast, “green” and smooth charcoal lighting and methods of preparation therefor.